Orsabaris was betrothed or had married as her first husband the Bithynian prince, usurperSocrates Chrestus.[5] Socrates Chrestus was a political ally to her father; as well he was her paternal second cousin. This possibility is based on coins minted after 72 BC, found at the Bithynian city of Prusias ad Mare, which bears the inscription of Orsabaris’ name.[6][7]

These coins reveal Orsabaris’ full name and her royal title in Greek.[8] An example of this coinage is, on one surviving coin, on the obverse side inscribes the full name and royal title of Orsabaris in Greek: ΒΑΣΙΛΙΣΣΗΣ ΜΟΥΣΗΣ ΟΡΣΟΡΑΡΙΟΣ, which means of Queen Mousa Orsobaris, showing her portrait. On the reverse side of the coin, is inscribed in Greek: ΠΡΟΥΣΩΝ ΤΩΝ ΠΡΟΣ ΘΑΛΑΣΣΗ, showing the head of Heracles. The city of Prusias ad Mare was the city that the Pontian paternal ancestors of Orsabaris originated from.[9] Socrates Chrestus had died by the time the Kingdom of Pontus was annexed by the Roman Triumvir and GeneralPompey in 63 BC.

Orsabaris was captured by Pompey and it seems that she was one of the few remaining relatives from the family of Mithridates VI, whose life was spared by the Romans. Orsabaris became a political prisoner of Pompey and served to adorn his triumph parade in Rome in 61 BC.[10] After Pompey’s triumph parade in Rome, Orsabaris was released by the Romans and she returned to Anatolia.[11]

The Romans had approved the status of Lycomedes, Orsabaris and their family, as they ruled over Comana for a substantial period.[14] Orsabaris and her family could be viewed as potential successors of Mithridates VI on the Pontian throne,[15] however the Kingdom of Pontus at the time became a Roman Client State who was ruled by Orsabaris' half-paternal brother Pharnaces II of Pontus; the sons of Pharnaces II and eventually by Polemon I of Pontus.